﻿<p>The <em>IfcLayeredItem</em> is the collection of all those items, that are assigned to a single layer. These items are representation items or complete representations (<em>IfcRepresentationItem, IfcRepresentation</em>). If an <em>IfcRepresentation</em> is referenced, all <em>IfcRepresentationItem</em> within its set of <em>Items</em> are assigned to the same layer.</p> 

<blockquote class="extDef">
NOTE&nbsp; Definition according to ISO 10303-46:<br>
The layered things type selects those things, which can be grouped in layers.</blockquote> 
<blockquote class="note">
NOTE&nbsp; Corresponding ISO 10303 name: layered_item. It was called layered_things in the ISO/CD version and had been renamed to layered_item in the ISO/IS final version. Please refer to ISO/IS 10303-46:1994, p. 13 for the final definition of the formal standard.
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<blockquote class="history">
HISTORY&nbsp; New type in IFC2x2.
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